Holley Adjustable Inlet needle & seat - Viton, Off Road HO6-513 111 Series Stainless Braid Cover Aeroflow's Billet EFI Fuel rails

Aeroflow's Billet EFI Fuel rails feature precision machining with heavy duty mounts for high pressure applications

These custom units are the finest available and offer a number of upgrades from our performance converter line

AF66-2052S

051 MLS (Multi-Layer Steel) Head Gaskets

Holley Adjustable Inlet needle & seat - Viton, Off Road HO6-513 111 Series Stainless Braid Cover Aeroflow's Billet EFI Fuel railsHolley Adjustable Inlet needle & seat Viton, Off RoadSize 0. 097" HO6 513 6 513 Most Holley performance carburettors come equipped with a Viton tipped needle. The Viton needle design is resistant to dirt and conforms nicely to the shape of the seat for superior sealing. For this reason it is not recommended to use a steel or titanium needle, except for racing.